:root {
    --bg-main: #131314;
    --bg-sidebar: #1e1f20;
    --bg-surface: #1e1f20;
    --bg-input: #1e1f20; 
    --text-main: #e3e3e3;
    --text-sub: #c4c7c5;
    --accent: #8ab4f8;
    --accent-active: #041e49;
    --hover-bg: #2d2f31;
    --border-color: #444746;
    --font-family: 'Google Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --card-bg: #242426;
    --transition: all 0.25s ease-out;
}

* { 
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
}

body { 
    font-family: var(--font-family); 
    background-color: var(--bg-main); 
    color: var(--text-main); 
    height: 100vh; 
    overflow: hidden; 
}

.material-symbols-outlined {
  font-weight: 300; 
  font-size: 20px; 
  color: var(--text-sub);
}

.header-sidebar-item.active .material-symbols-outlined {
  font-weight: 300; 
  font-size: 20px; 
  color: var(--accent-active);
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    border: 2px solid transparent; /* 트랙과의 간격 효과 */
    background-clip: content-box;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
    background-clip: content-box;
}